THIRDREALITY Zigbee Contact Sensor, Door and Window Monitor, Home Automation, Works with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required

Have multiple items from thirdreality in my HA setup. they always work well, pair easily and have awesome battery life

Ordered one of these to replace my older, smaller version. This added easily to my network and has been working great. Seems to be very reliable

Updated review 11/14/22 and reinstated 5 star rating:Apparently, during the last week or so of October 2022, there was a software issue of some sort between this device (contact & motion sensors) and my Echo Show. I think it was a zigbee issue. A lot of users of zigbee-enabled devices complained about it on reddit. I don't know the exact problem because it's all hush-hush, keep the customer uninformed. Apparently, it was corrected by Amazon after approximately one week. My Third Reality zigbee contact and motion sensors all work beautifully at the moment. Until the next glitch, of course. I reinstated my original 5 star rating because I really like how these devices work for me (except for the glitches, of course).-----------------Updated review 10/31/22 and 1 star rating:It worked great, until it didn’t. It disconnected from Alexa and won’t reconnect. The sensor itself works. The red light lights up when the door is open, but what good is a sensor when Alexa can’t tell you the door is open?———————Original review 10/13/22 and original 5 star rating:This device works with my Echo Show with zigbee. I asked Alexa to "find my device" and she did. I didn't need any other hub, app, or skill, and I like that it's not wifi. I purchased a couple to use on interior doors at night so I know if a door opens or not. I set up an Alexa routine. In my house, Alexa announces the door is open within 3 seconds of opening the door. There is no down or recovery time. It'll work again within seconds.I'm very happy with it and its easy integration via zigbee with the Alexa app.

These are way more reliable than my Aquara sensor and I'd say get these over others. The only negative is that they are a bit big so you notice them more depending on where you stick them. They have to be bigger for the batteries, so it makes sense just they do stick out more than other sensors that are physically smaller.

Just got these, only had for a short time, so far, very good battery life, they ARE a little bigger-bodied than most, therefore more noticeable, but seem to stay secure when fastened by included sticky tape. Responsive to my Homeassistant system, zigbee is pretty quick for them.

Only been a week and one of the 2 sensors is already stuck in the open position. Range is close to the hub and batteries are 100% still. I have reset and reconnected the device. It is impossible to get the back off the small sensor to screw it in. Dont even try it, youll break it. These things are garbage.UPDATE: 2 days later the second sensor is now stuck in the open position.

I bought THIRDREALITY Zigbee Contact Sensor 4 Pack for for $41.99 on Noveber 21, 2024. This contact sensor is definitely one of the sensors I have, and it works well every single time. I love that it uses AAA batteries unlike other sensors I have, and I had no issues connecting it to Hubitat.One item to note is that these contact sensors are rather big. My other sensors are significantly smaller, but they also do not use AAA batteries. Given that my sensors are not easily visible where I placed them, their size is not an issue for me. But be aware that these are big / slightly bulky.I am very happy with this and would definitely buy them again.

These THIRDREALITY Zigbee Contact Sensors work great so far. They trigger quickly, and setup with ZHA in Home Assistant was straightforward. The strong magnets were a nice touch—made it easy to install on doors and windows that have a bit of a wider gap.There’s a custom ZHA quirk available to tweak trigger times, which is useful, but honestly, it’d be better if this feature was built-in from the start. Overall, these sensors are a solid choice if you’re looking for something fast and easy to set up, with a few extra tweaks available if you want them.